V

validator

Offline HTML5 validator

https://html-validate.org/

PostgreSQL Configuration Parameter Validator gives you the ability to verify if a GUC (Grand Unified Configuration) parameter is valid based on a few rules that are checked depending on the PostgreSQL server version being used.

Email Validator web service validates email addresses: https://email-validator.pommalabs.xyz/

Advanced validation library for PHP with multiple API styles including templates, inline rules, builder pattern, and functional composition. Features 50+ built-in validators, dot notation for nested objects, field reference resolution, and internationalization support. Designed for maximum developer experience with extensible custom rule system.

A Java API for national and international phone numbers. The code is part of the blog article Das Mimikri Muster.

A Java Bean Validation library, to validate IBAN and BIC values.

A custom Antora site generator that performs rudimentary validation of xrefs (specifically page references).

Validation Annotations for URI classes

A Java library that performs bean validation similar to javax.validation, but rather than validating at runtime, the annotations used here are evaluated at compile time.

Python schema validation library using Rust

Web crawler for checking the validity of your documents.

PowerRule is a .NET validation library that is stable, easy to customize, and the rules it defines are easy to understand. https://www.nuget.org/packages/PowerRule

Deprecated validator. Use https://gitlab.com/pachek-opensource/validator/core-validator

Form and Input Validator for UI5 Apps

Api de productos hecha en Laravel 9 usando Factory y Validator

Dockerized version of ilivalidator (https://github.com/claeis/ilivalidator).

a guide in transition for node operators and validators

Utility functions for basic development. This library is part of ECUALEAD Microservices Infraestructure.